Full Stack Developer

We are looking for a Full Stack Developer (SDE II) to build and scale production-grade web applications using Node.js, TypeScript, and React. You will work on checkout and payment flows, merchant-facing products, Shopify integrations, and event-driven backend services. You will own end-to-end feature development, collaborate with cross-functional teams, and ensure application performance, reliability, and scalability.

Responsibilities:

• Build and maintain checkout and payment flows by integrating payment gateways and handling retries, idempotency, and reconciliation.
• Develop merchant-facing product features, including dashboards, billing views, and configuration tools.
• Build Shopify integrations using Admin GraphQL APIs, webhooks, and app integrations.
• Design and develop scalable backend services using Node.js and TypeScript.
• Build event-driven backend services, queue consumers, scheduled jobs, and data pipelines using AWS.
• Develop and maintain frontend applications using React, including state management and performance optimisation.
• Design and optimise PostgreSQL and MongoDB databases, ensuring efficient data modelling and query performance.
• Debug and troubleshoot production issues using logs, traces, and monitoring tools.
• Collaborate with product, frontend, and engineering teams to deliver high-quality features.
• Follow engineering best practices, participate in code reviews, and take ownership of features from development to production.

Requirements:

• 2-5+ years of experience building and shipping production web applications.
• Strong proficiency in TypeScript and JavaScript across backend and frontend development.
• Hands-on experience with Node.js, including REST / GraphQL APIs, service architecture, and authentication.
• Good experience with React or equivalent frontend frameworks.
• Strong understanding of PostgreSQL and MongoDB, including database design and query optimisation.
• Experience with AWS services such as ECS, Lambda, S3, SQS, and EventBridge.
• Understanding of cloud infrastructure, containerised deployments, and CI/CD pipelines.
• Experience with Git, debugging, and production monitoring tools.
• Strong problem-solving skills and the ability to independently own and deliver features.

Preferred:

• Experience with Shopify integrations, Admin GraphQL APIs, webhooks, or Shopify app development.
• Experience integrating payment gateways
• Understanding of idempotency, payment reconciliation, and webhook-driven workflows.
• Experience with microservices and event-driven architecture.
• Familiarity with Redis, Kafka, RabbitMQ, and caching strategies.
• Experience with Docker, automated testing, and CI/CD pipelines.
• Experience working with monorepos such as Nx or Turborepo.

Skills

Node.js, TypeScript, React, React.js